SDMAX Expanding Foam Filler Spray, Bond and Fill, Long Lasting Seal, Ideal for Bonding, Filling, Sealing and Insulating Cracks, Gaps, Fills Up to 33 Litres, 500ML (3 PCS)BOND AND FILL: This foam filler spray is designed to bond and fill gaps, cracks, and voids in various surfaces, including wood, metal, concrete, and plastic. It creates a strong and durable bond, ensuring long lasting results. LONG LASTING SEAL: Once applied, the expanding foam forms a tight and durable seal that effectively prevents air leakage, moisture ingress, and heat loss. This helps improve energy efficiency and provides insulation against